在asp.net中从web Api加载RadComboBoxItemData[]

using System.Web.Http;

public class ComboBoxController : ApiController
{
    [HttpGet]
    public RadComboBoxItemData[] GetComboBoxData()
    {
        // 从数据库或其他数据源获取数据
        // 构造RadComboBoxItemData[]对象并返回

        RadComboBoxItemData[] data = new RadComboBoxItemData[]
        {
            new RadComboBoxItemData { Text = "Item 1", Value = "1" },
            new RadComboBoxItemData { Text = "Item 2", Value = "2" },
            new RadComboBoxItemData { Text = "Item 3", Value = "3" }
        };

        return data;
    }
}

protected void Application_Start()
{
    GlobalConfiguration.Configure(WebApiConfig.Register);
}

using System.Web.Http;

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        // 配置路由
        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );
    }
}

$(document).ready(function() {
    $.ajax({
        url: '/api/ComboBox/GetComboBoxData',
        type: 'GET',
        dataType: 'json',
        success: function(data) {
            // 将返回的RadComboBoxItemData[]数据绑定到RadComboBox中
            var comboBox = $find("<%= RadComboBox1.ClientID %>");
            comboBox.clearItems();
            comboBox.trackChanges();
            for (var i = 0; i < data.length; i++) {
                comboBox.addItem(data[i].Text, data[i].Value);
            }
            comboBox.commitChanges();
        },
        error: function(xhr, status, error) {
            // 处理错误
        }
    });
});